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research73
09.07.2019 •
Mathematics
In your notebook, set up the following addition using a vertical format and find the sum of the given polynomials. 2mn + 4n 2 and 5m 2 - 7mn 9m2 + 9mn - 4n2 5m2 - 14mn - 4n2 5m2 - 5mn + 4n2 5m2 + 5mn - 4n2
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Ответ:
2mn + 4n² + 5m² - 7mn = 4n² + (2mn - 7mn) + 5m² = 4n² - 5mn + 5m²
C
Ответ:
C is correct.
Step-by-step explanation:
Set up the following addition using a vertical format.
Vertical Format: Write each polynomial below their like term and then combine it
First expression:![2mn+4n^2](/tpl/images/0069/7389/71031.png)
2nd Expression:![5m^2-7mn](/tpl/images/0069/7389/81a32.png)
Now, we will add vertically. If the variable part of the term is same then it would be like term.
Vertical Format:
We wrote the like term below their corresponding.
Now, combine their coefficient and write variable as same.
We can rearrange the term according to options.
Hence, Th addition of two expression is![5m^2-5mn+4n^2](/tpl/images/0069/7389/997e2.png)
Ответ:
x = 8
Step-by-step explanation:
Standard form for inverse variation:
y = k/x
We now use the given information to find k.
y = 6 when x = 24
6 = k/24
k = 6 * 24
k = 144
The equation for this inverse relation is
y = 144/x
For y = 18, we get
18 = 144/x
18x = 144
x = 144/18
x = 8